文档介绍：25×2= 25×4= 25×6= 25×8= 25×3= 25×5= 25×7= 25×9= 15×2= 15×4= 15×6= 15×8= 15×3= 15×5= 15×7= 15×9= 45×2= 45×4= 45×6= 45×8= 45×3= 45×5= 45×7= 45×9= 35×2= 35×4= 35×6= 35×8= 35×3= 35×5= 35×7= 35×9= 125 ×2= 125 ×4= 125 ×6= 125 ×8= 125 ×3= 125 ×5= 125 ×7= 125 ×9= 123 + 25= 80- 17= 10+ 20= 120 - 25= 248 + 89= 85- 18= 11+ 22= 125 - 26= 456 + 45= 90- 19= 12+ 24= 130 - 27= 879 + 54= 95- 20= 60- 13= 146 - 23= 457 + 456 = 100 - 21= 65- 14= 546 - 457 = 7+ 14= 105 - 22= 70- 15= 896 - 546 = 8+ 16= 110 - 23= 75- 16= 155 ×5= 9+ 18= 115 - 24= 564 - 12= 45× 10= 45- 23= 456 - 12= 56- 45= 56× 12= 78- 23= 25×6= 125 ×4= 25×7= 26+ 9= 57- 38= 1500 - 700 = 42×2= 660 ÷3= 960 ÷3= 180 ÷9= 65+ 15= 50÷5= 3× 800 = 420 ÷7= 3× 220 = 420 - 20= 93÷3= 880 ÷4= 1200 - 200 = 0÷ 51= 0÷ 76= 0× 85= 70÷7= 25× 3= 268+125= 280+40= 66- 22= 46× 20= 85- 42= 90- 31= 60× 9= 55+ 41= 30× 4= 81+ 12= 400 × 5= 45÷ 3= 51+ 31= 13× 3= 60÷ 4= 120 - 50= 300 - 64= 64× 10= 6+6× 7= 400 × 5= 50- 31= 425 × 0= 528 - 0= 450 + 80= 57+ 140= 800 × 2= 3000 - 400= 420 ÷ 7= 6× 80+ 20= 420-330= 5× 28= 60× 5= 17× 3= 12+ 88= 630 ÷ 9= 350 ÷ 7= 700 × 2= 18× 4= 320 × 3= 60× 15= 72÷6÷ 2= 400 × 3= 8+2× 20= 22+ 40= 7×8- 7= 56÷ 8= 380 - 190= 400 × 6= 50- 23= 35× 0= 40× 6= 300 × 6= 7+3× 4= 90- 26= 8×6+ 7= 52+23= 6×4÷ 2= 120 × 4= 80× 5= 40× 5= 15×5+ 5= 600 - 50= 56× 2= 200 - 36= 15+5 × 3= 380+50= 789 + 0= 300 ÷ 5= 15×4+ 8= 680 × 0= 40× 25= 6× 6+6= 43- 24= 11× 9= 120 × 3= 360+80= 300 × 7= 85+ 47= 310 × 3= 200 × 5= 320 × 2= 660 ÷ 6= 700 × 2= 80× 3= 70+ 550= 800 × 6= 500 × 4= 540 ÷ 9= 14× 5= 350 - 80= 570 + 50= 23× 3= 180 ÷ 3= 200 × 8= 530 - 70= 850 × 2= 263 - 80= 850 ÷ 2= 98+ 26× 0= 6× 3= 49÷ 7= 18÷ 6= 45+ 32= 24÷ 8= 40÷ 5= 500 + 300= 450 + 500= 360 - 80= 50+ 800= 9× 6= 72÷ 8= 28÷ 7= 5× 9= 360 - 30= 730 - 700= 18÷ 3= 3400 - 300= 120 + 400= 21÷ 7= 700 + 800= 9× 4= 48÷ 6= 1200 + 800= 720 + 80= 8× 7= 460 + 400= 6× 8= 6× 7= 45÷ 5= 200 + 800= 24- 6= 8× 3= 3000 - 1500= 760 + 60= 35÷ 7= 27+ 53= 240 - 120= 5000 - 500= 3600 - 600= 30× 2= 52× 7= 100 × 4= 400 ×8= 9